Skittishness rhymes with:
bearishness, boorishness, bullishness, foolishness, jewishness, selfishness, sluggishness, squeamishness, waterishness, bearishness, boorishness, brashness, bullishness, foolishness, freshness, harshness, jewishness, selfishness, sluggishness, squeamishness, waterishness
Skittishness sounds like:
seducing, shotguns, sightseeing, sitcoms, sketching, st-james, st-johns, stachnik, stacking, staging, staking, stashing, statesman's, stegenga, sticking, stitching, stocking, stockings, stockman's, stoking, studzinski, st_james, swatching, switching